459 Broadway
K-12 School in Cambridge, MA
At a glance
459 Broadway is a 403,393-square-foot K-12 school in Cambridge, Massachusetts, built in 2011. In its 2024 Cambridge benchmarking disclosure it reported an ENERGY STAR score of 71 out of 100 (grade B), a site energy-use intensity of 63.1 kBtu/ft² and 1,556 tCO₂e of greenhouse-gas emissions. That score is higher than 58% of the 38 scored K-12 school buildings in Cambridge.
BEUDO · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 71 (band B) |
| Site EUI | 63.1 kBtu/ft² |
| Source EUI | 113.7 kBtu/ft² |
| GHG emissions | 1,556 tCO₂e |
| GHG intensity | — |
| Electricity | 3,206,946 kWh |
| Natural gas | 144,275 therms |
| Gross floor area | 403,393 sq ft |
| Source record | cambridge:B1034:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 71 | +5 | 63.1 kBtu/ft² | 1,556 tCO₂e |
| 2023 | 66 | -3 | 66.0 kBtu/ft² | 1,629 tCO₂e |
| 2022 | 69 | -3 | 67.9 kBtu/ft² | 1,659 tCO₂e |
| 2021 | 72 | -5 | 62.0 kBtu/ft² | 1,521 tCO₂e |
| 2020 | 77 | -7 | 44.6 kBtu/ft² | 1,098 tCO₂e |
| 2019 | 84 | +4 | 47.1 kBtu/ft² | 1,116 tCO₂e |
| 2018 | 80 | +2 | 50.5 kBtu/ft² | 1,245 tCO₂e |
| 2017 | 78 | +2 | 49.4 kBtu/ft² | 1,262 tCO₂e |
| 2016 | 76 | +4 | 52.6 kBtu/ft² | 1,341 tCO₂e |
| 2015 | 72 | 57.3 kBtu/ft² | 1,467 tCO₂e |
Compliance context
BEUDO
Cambridge's 2023 BEUDO amendments require non-residential buildings of 100,000+ sq ft to reach net-zero emissions by 2035 (reductions starting 2026) and those of 25,000–100,000 sq ft by 2050 (starting 2030).
Ownership
CAMBRIDGE CITY OF
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Location
- Address
- 459 Broadway
- City
- Cambridge
- State
- Massachusetts
- Coordinates
- 42.37450, -71.11180
Within ~1 km
Nearby benchmarked buildings
- 52 Oxford Stscore —
College/University · 551,387 sq ft
- 900 Memorial Drivescore 47
Multifamily Housing · 450,849 sq ft
- 1493 Cambridge Streetscore 33
Hospital (General Medical & Surgical) · 360,250 sq ft
- 1 Oxford Stscore —
College/University · 355,836 sq ft
- 1575 Cambridge Streetscore —
Outpatient Rehabilitation/Physical Therapy · 352,622 sq ft
- 75 Mount Auburn Streetscore 79
Office · 345,571 sq ft
See also: most efficient in Cambridge · biggest emitters
How does 459 Broadway compare with other K-12 school buildings in Cambridge?
The latest disclosures cover 45 K-12 school buildings in Cambridge, out of 902 buildings citywide. 459 Broadway's ENERGY STAR score of 71 compares with an average of 60 across the 38 that report a score; it scores higher than 58% of them and lower than 39%. Its site EUI of 63.1 kBtu/ft² is roughly in line with the average of 62.4 kBtu/ft².
At 403,393 sq ft, it is about 553% above the average floor area of 61,739 sq ft for those buildings. It was built in 2011, 55 years later than the group's average year built (1956). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².
How has 459 Broadway's energy performance changed over time?
BuildingCensus holds 10 Cambridge disclosures for 459 Broadway, covering report years 2015–2024. Its ENERGY STAR score went from 72 in 2015 to 71 in 2024 (-1 points); its best year on file was 2019, at 84. Site EUI moved from 57.3 kBtu/ft² (2015) to 63.1 kBtu/ft² (2024), an 10% increase. Reported emissions went from 1,467 tCO₂e to 1,556 tCO₂e over the same span (up 6%).
What does an ENERGY STAR score of 71 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 71 means the building performs better than about 71% of its national peers. BuildingCensus bands the score into report-card grades; 71 falls in band B — above median (70–84). It sits 4 points below 75, the threshold for ENERGY STAR certification. In Cambridge, 50% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. 459 Broadway's 63.1 kBtu/ft² across 403,393 sq ft works out to about 25.5 billion Btu (7,460 MWh-equivalent) in 2024. Its source EUI of 113.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,206,946 kWh of electricity and 144,275 therms of natural gas for the year.
Which law requires 459 Broadway to report its energy use?
459 Broadway reports under BEUDO, the legal basis of Cambridge's Building Energy Use Disclosure Ordinance (BEUDO), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record cambridge:B1034:2024). Cambridge's 2023 BEUDO amendments require non-residential buildings of 100,000+ sq ft to reach net-zero emissions by 2035 (reductions starting 2026) and those of 25,000–100,000 sq ft by 2050 (starting 2030).
More K-12 school buildings in Cambridge
- 850 Cambridge St· 276,000 sq ft · EUI 37.6 kBtu/ft²
- 100 Putnam Avenue· 152,065 sq ft · score 92 (A)
- 70 Rindge Avenue· 128,392 sq ft
- 158 Spring Street· 127,302 sq ft · score 34 (D)
- 197 Vassal Lane· 124,543 sq ft · score 46 (D)
- 178 Coolidge Hill· 110,000 sq ft · score 38 (D)
- K-12 School buildings in Cambridge· 45 benchmarked
- All Cambridge benchmarked buildings· BEUDO
- Most efficient large buildings in Cambridge
- Least efficient large buildings in Cambridge
- Biggest emitters in Cambridge
Frequently asked questions
What is 459 Broadway's energy grade?
459 Broadway scores 71 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 Cambridge disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 459 Broadway use?
Its 2024 site energy-use intensity was 63.1 kBtu/ft² (113.7 kBtu/ft² source) across 403,393 sq ft, including 3,206,946 kWh of electricity and 144,275 therms of natural gas.
What are 459 Broadway's carbon emissions?
459 Broadway reported 1,556 tCO₂e of greenhouse-gas emissions for 2024.
Where is 459 Broadway?
459 Broadway is in Cambridge, Massachusetts. Its coordinates are 42.37450, -71.11180 (latitude, longitude), as published in the Building Energy Use Disclosure Ordinance (BEUDO) file.
How big is 459 Broadway and when was it built?
459 Broadway has 403,393 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2011 as its year built. It is classed as K-12 school.
Is 459 Broadway covered by BEUDO?
Yes — it appears in the 2024 Building Energy Use Disclosure Ordinance (BEUDO) disclosure, which lists the buildings reporting under BEUDO.
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About this data
Source: Building Energy Use Disclosure Ordinance (BEUDO) (BEUDO), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “459 Broadway, Cambridge, Massachusetts — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/cambridge/459-broadway-dccdefe6 (data as of October 2, 2026).